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                                                      Exhibit(10)-30
                                                    Commonwealth Edison Company
                                                    Form 10-K  File No. 1-1839

                    [Commonwealth Edison/Unicom Letterhead]

                                       December 11, 1996

Mr. Samuel K. Skinner
President
Commonwealth Edison Company
P.O. Box 767
Chicago, Illinois 60690-0767

Dear Sam:

The purpose of this letter is to confirm our agreement with respect to your
employment as President of Commonwealth Edison Company and Unicom Corporation.

We have agreed that you will be eligible for post-retirement coverage under the
Commonwealth Edison Employees' Medical Expense Plan, the Commonwealth Edison
Dental Expense Plan and the Commonwealth Edison Vision/Hearing Care Plan
(collectively, the "Plans"), provided you meet the requirements for such
coverage as set forth in the Plans at the time of your retirement.  Solely for
the purpose of determining whether you meet these requirements, you will be
deemed to have completed 10 years of credited service under the Commonwealth
Edison Company Service Annuity System (the "SAS") even though you retire before
completing 10 years of such service.  Your pension under the SAS will continue
to be computed based on your actual service.

We also have agreed that the word "death" will be stricken from the second
paragraph of paragraph 5 of the December 16, 1992 letter agreement.

All other terms of the December 16, 1992 letter agreement, as amended by letter
agreement dated May 31, 1995, remain unaffected by these changes.

If the above is consistent with the agreement reached in our discussion, please
countersign in the space provided below.

Sincerely,

James J. O'Connor
----------------------
James J. O'Connor
Chairman and Chief Executive Officer

Samuel K. Skinner
----------------------
Samuel K. Skinner
President


 

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                    [Commonwealth Edison/Unicom Letterhead]


                                March 24, 1997



Mr. Samuel K. Skinner
President
Commonwealth Edison Company
P.O. Box 767
Chicago, Illinois 60690-0767

Dear Sam:

The purpose of this letter is to confirm our agreement with respect to your
employment as President of Commonwealth Edison Company and Unicom Corporation.

We have agreed that the surviving spouse benefit provided in the last sentence
of paragraph 4 of the December 16, 1992 letter agreement will be payable to your
spouse in the event you die while in the employ of the Company, whether you die
before or after completing five years of service, and will be 50% of the amount
to which you would be entitled. Solely for the purpose of determining your
spouse's benefit in the event you die while in the employ of the Company before
completing five years of service, you will be deemed to have completed five
years of service on the day prior to your date of death.

All other terms of the December 16, 1992 letter agreement, as amended by letter
agreements dated May 31, 1995 and December 11, 1996, remain unaffected by this
change.

If the above is consistent with the agreement reached in our discussion, please
countersign in the space provided below.

Sincerely,

James J. O'Connor
----------------------

James J. O'Connor
Chairman and Chief Executive Officer

Samuel K. Skinner
----------------------

Samuel K. Skinner
President